# Polygon ERC20 Transfer Analyzer

> Polygon ERC20 Transfer Analyzer is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Analyzes caller-supplied Polygon PoS ERC20 transfer data and returns structured breakdowns of token movements, amounts, addresses, and network context.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/polygon_erc20_transfer_analyze/invoke
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polygon-erc20-transfer-analyzer-e09a52d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZEWcQF0UO6taueyUU1B5W

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability polygon-erc20-transfer-analyzer-e09a52d1 -d '<json body>'
```

Example prompt: Can you analyze this Polygon ERC20 transfer data for me? I have a transfer of 100 atomic units from 0x0000000000000000000000000000000000000001 to 0x0000000000000000000000000000000000000002 on chain ID 137 — break it down and tell me what the network context looks like.

## When to prefer this

Choose this endpoint when you have caller-supplied Polygon PoS ERC20 transfer data that needs to be parsed, structured, and annotated with network context — especially when you need atomic-level transfer breakdowns, from/to address extraction, and chain-specific metadata for chain IDs 137 or 80002. Prefer this over general blockchain explorers when you already have the raw transfer data and need a programmatic, agent-consumable structured analysis rather than a UI-based lookup.

## Known failure modes

- Malformed or non-JSON request_json causes parsing error
- Missing required transfer fields result in incomplete or warning-heavy analysis
- Unsupported chain ID (not 137 or 80002) may yield unexpected network context
- Decimals and token success state are never inferred without explicit evidence — always generates a warning
- Overly large request_json (>65536 chars) rejected at input validation
- Payment failure via x402 protocol results in no execution

## How this service works

Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.

## Output

Returns a structured analysis JSON containing network context (accepted chain IDs, bridge model, completion policy, protocol family), transfer details (from/to addresses, atomic amount, token, transaction hash, log index, index), evidence scope, analyzed network, plus a status field, warnings array, and a signed receipt with payment metadata and result hash.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "request_json": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Decimals and success are not inferred."
   ],
   "service_id": "polygon_erc20_transfer_analyze",
   "analysis_json": "{\"network_context\":{\"accepted_chain_ids\":[\"137\",\"80002\"],\"bridge_model\":\"root-child state sync plus checkpoint evidence\",\"completion_policy\":\"never inferred without supplied evidence\",\"protocol_family\":\"Polygon PoS\"},\"total_atomic\":\"100\",\"transfers\":[{\"amount_atomic\":\"100\",\"from\":\"0x0000000000000000000000000000000000000001\",\"index\":0,\"log_index\":null,\"to\":\"0x0000000000000000000000000000000000000002\",\"token\":null,\"transaction_hash\":null}]}",
   "evidence_scope": "caller_supplied_data",
   "analyzed_network": "polygon"
  },
  "status": "succeeded",
  "receipt": {
   "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "usage": [],
   "status": "succeeded",
   "network": "eip155:8453",
   "artifacts": [],
   "endedAtMs": 0,
   "latencyMs": 0,
   "paymentId": "example-payment",
   "receiptId": "example-receipt",
   "requestId": "example-request",
   "serviceId": "polygon_erc20_transfer_analyze",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "10000",
   "resultSha256": "c5aa27d073a0e2c033185693c9c4c57edd3fa2565355b697fb248d342e5f2a8c",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polygon-erc20-transfer-analyzer-e09a52d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)